- Guangxi Angang Yongtong Casting Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Bestar pipe Co,.Ltd
- Main business:
- Caribbean RegionBermuda
- Cangzhou Yuanfang Steel Pipe Co., Ltd
- Main business:
- Caribbean RegionBermuda
- shengtai pipeline Co;ltd
- Main business:
- Caribbean RegionBermuda
- Yantai Runkang Steel Pipe Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Tianjin Jinnuo Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei borun steel trade co.,ltd iInternational dept
- Main business:
- Caribbean RegionBermuda
- Xinyuantai Steel Pipe GroupCo,.Ltd
- Main business:
- Caribbean RegionBermuda
- Zibo UP trading company ltd.
- Main business:
- Caribbean RegionBermuda
- Justa (China) Import & Export Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Tianjin Youfa Steel Pipe Group
- Main business:
- Caribbean RegionBermuda
- Hebei Dingli Pipeline Industry Co,.Ltd
- Main business:
- Caribbean RegionBermuda
- Yangtze River electrical construction tools Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Cangzhou Dino laser Machinery Processing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- nanjing maici titanium industry co.,ltd.
- Main business:
- Caribbean RegionBermuda
- HYX Hardware Products Factory
- Main business:
- Caribbean RegionBermuda
- Jineng Hardware Wire Mesh Products Factory
- Main business:
- Caribbean RegionBermuda
- Dalian Yuanda Industrial Group Limited
- Main business:
- Caribbean RegionBermuda
- Shanghai unite steel
- Main business:
- Caribbean RegionBermuda
- Qingdao Wancheng Construction Equipment Co. Ltd
- Main business:
- Caribbean RegionBermuda